Can I use block element inside another nested block?

[BlackRabbitt]

considering the example below, is it against BEM to use block-element (i-form__input1) inside another nested block n-block?

<div class="i-form">
.....<div class="n-block">
..........<div class="i-form__input1">
..........</div>
.....</div>
</div>

[dotnetCarpenter]

Should be fine according to #225 (comment)